Add 30/84 and 21/98
30/84 + 21/98 is 4/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 98 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
30/84 = 30 × 7/84 × 7 = 210/588 - Likewise, for the 2nd fraction, since 98 × 6 = 588,
21/98 = 21 × 6/98 × 6 = 126/588 - Add the two like fractions:
210/588 + 126/588 = 210 + 126/588 = 336/588 - 336/588 simplified gives 4/7
- So, 30/84 + 21/98 = 4/7
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